CN1216088A - Air and exhaust gas management system for two-cycle IC engine - Google Patents
Air and exhaust gas management system for two-cycle IC engine Download PDFInfo
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- CN1216088A CN1216088A CN97193753A CN97193753A CN1216088A CN 1216088 A CN1216088 A CN 1216088A CN 97193753 A CN97193753 A CN 97193753A CN 97193753 A CN97193753 A CN 97193753A CN 1216088 A CN1216088 A CN 1216088A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H33/00—Other toys
- A63H33/02—Toy hoops, i.e. rings to be rolled by separate sticks; Sticks for propelling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
- F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The air and exhaust gas management (scavenging) system for a two-cycle internal combustion engine allows the engine to perform comparably to similar four-cycle engines, while remaining lighter, simpler and more cost-effective than its four-cycle counterpart. Scavenging is achieved by locating at least one and preferably a number of air intake valves (1) at the top of the cylinder(s) (2), and at least one and preferably a number of exhaust gas ports (51) in the lower cylinder walls, in combination with a blower (4) which drives scavenging air through the cylinders during the piston downstroke once the exhaust gas ports are uncovered.
Description
The technical field of the invention
The present invention relates to a kind of two-cycle IC engine, the alkene machine is used in particularly a kind of two stroke cycle improved combustion air supply and exhaust emission system.
Background technique
A subject matter of two-cycle IC engine is scavenging and the method that combustion air is provided in one-stroke.The method of this scavenging so-called " scale removal ".Although fuel injection system has alleviated this problem to a certain extent, in order to obtain high power and low waste gas scale removal is absolutely necessary.
Disclosure of an invention
In view of the foregoing, an object of the present invention is provides a kind of air supply and waste gas treatment (scale removal) system for two-cycle IC engine, make the equally matched of the effect of this motor and foru cycle engine, and lighter, simple than foru cycle engine, and cost-effectiveness ratio is better.
A further object of the present invention is for this system provides property, comprises special system parts and modular construction.
In the present invention, scale removal is by installing one at least at each cylinder head, preferably adorn a plurality of air inlet valves and establish one at least on therapeutic method to keep the adverse qi flowing downward casing wall, establishes preferably that a plurality of outlet ports realize.These air inlet valves are controlled by air pressure difference fully, and pressure difference is to be produced by the lifting of the opposite side air supply room pressure of the lifting of the inner pressure of air cylinder of valve one side and valve.When the piston wheel rim was removed the outlet port of down stroke, the pressure in the cylinder dropped to and is lower than the indoor pressure of air supply, and the air inlet valve open is come in by scavenging air.Force to make air enter air inlet chamber with a blower, pass valve then, from cylinder so that when piston descends, more effectively waste gas is removed.This method can be used for diesel oil or quartastroke engine.
Most preferred embodiment of the present invention aims to provide the internal-combustion engine that a kind of potential power is output as 100 horsepowers to 300 horsepowers, for example adopts a kind of motor of Combination Design, can adorn 2,3,4 or 6 cylinders as required, and air displacement is between 1.0 to 3.0 liters.But the present invention is not confined to specific number of cylinders or size, or the output of specific power.
Further feature of the present invention will seem clearer by detailed description hereinafter.
Brief description of drawings
For being had more clearly the present invention, people understand, and existing with most preferred embodiment and the description for example at length of accompanying drawing do.
Fig. 1 is the simple schematic representation of one embodiment of the present of invention;
Fig. 2 is the perspective view of the air inlet chamber of embodiments of the invention, and the one group of air inlet valve that is contained in the cylinder head concentric circle is shown;
Fig. 3 is the profile perspective on top of a cylinder of engine body;
Fig. 4 is the perspective view of a kind of counterseal part of air intake valve use;
Fig. 5 is the perspective view of the counterseal part of another kind of pattern;
Fig. 6 is the perspective view of the counterseal part of another pattern;
Fig. 7 is the another kind of embodiment's of air inlet valve a perspective view, and whole valves of each cylinder all are contained in the unique removable assembly;
Fig. 8 is the perspective view that the assembly among Fig. 7 is seen from the bottom;
Fig. 9 is the profile perspective that is contained in the counterseal part of several shapes in the removable assembly;
Figure 10 is the cross-sectional view of Fig. 9;
Figure 11 is the perspective view that a two stroke engine of replaceable valving is housed of the present invention;
Figure 12 is one and prevents that lubricant oil is trapped in the perspective view of the waste gas-oil separator in the waste gas.
Realize best mode of the present invention air supply part of the present invention
Fig. 1 shows one embodiment of the present of invention briefly.Outside the deacration air intake valve structure, this embodiment is present the best.Fig. 2 and Fig. 3 or Fig. 7 are extremely shown in Figure 10 to be best at present air intake valve structure.Along with the progress and the development of motor, other embodiment of the principle of the invention may more be better than concrete example described herein.
A major character of the present invention is that a scale removal blower 4 is housed, and is used for scavenging, fills air to motor simultaneously.According to the characteristic of motor, the scale removal blower can be a low-pressure type, and just for suitable scale removal, it can only overcome the resistance that air and waste gas flows in pipeline.Another kind is a high pressure scale removal blower, can be used to provide the precompression in the cylinder, to improve power output.This high pressure scale removal blower can even be adorned the interstage cooler 5 of a routine to improve pre-inflation effect.
Because the expansion stage must provide the working stroke of two stroke engine, preferably allows exhaust outlet close, so that make downstroke long as far as possible.Adopt the blower scale removal to improve performance, because can postpone the opening time of exhaust outlet like this and not influence descale effect.
Scale removal blower 4 is to drive with an electric servomotor 9, makes the scale removal blower working environment of variation of motor that can make an immediate response, and does not rely on the working environment of motor, as the revolution of bent axle or the energy content of waste gas.Therefore, the scale removal blower adopts servo motor driven and makes this control of the optimized computer program of scale removal blower function blower by one.This servomotor provides the necessary electronic feedback to computer program.
As shown in Figure 1, best air filter 6 and check valve 7 by a routine earlier of the air that is sucked into the scale removal blower.Arrive distributing T-pipe valve 8 (below will describe in detail) before at air, improve the power output of motor if desired, can allow air pass through the interstage cooler 5 of a routine.
A distributing T-pipe valve 8 is housed between interstage cooler 5 and air inlet chamber 3, and in addition, if motor does not comprise an interstage cooler, then the diverging three way valve goalkeeper is contained between the outlet and air inlet chamber of blower 4.The distributing T-pipe valve can more effectively be controlled the interaction between scale removal blower and the internal-combustion engine.
The distributing T-pipe valve links to each other with accelerator 10, and when accelerator reduced pressure and needs full power, the distributing T-pipe valve provided air stream without restriction to air inlet chamber like this, and when the race of engine, the part air stream turns back to the suction side of scale removal blower.In addition, several air pressures and air flows transducer (not shown) are housed, the part as air supply system provides feedback to electronic control system.In another embodiment, the shift in position of distributing T-pipe valve can be controlled with a little auxiliary servomotor (not shown).This auxiliary servomotor control system is accepted the feedback that is used for measuring the electronic state encoder of accelerator state from one.
Fig. 3 illustrates a suction tude 21 and steam outlet pipe 24 of air inlet valve, and the pipe flange 22 of ring suction tude periphery.In this most preferred embodiment, the diameter of suction tude is 7 millimeters, and the diameter of steam outlet pipe is 11 millimeters.Near in the steam outlet pipe of tracheae an annular seating 23 is being housed.A counterseal part 25 free floating in steam outlet pipe is upwards by ring seat 23 stop, downwards by stop ring 26 stop with one heart.The counterseal part can leave the axially enough distances of unrestricted motion of annular seating, to open a passage that allows air flows.On operating position, the counterseal part leans against on the annular seating, has cut off air-flow basically.Stop ring is concentric with cylinder axis, and cross section is trapezoidal, is contained in the complementary dovetail groove in the lower plane of cylinder head.Pipe 27 and 28 dividing plates that pass between air inlet chamber and the cylinder are equipped with spark plug and fuel nozzle respectively.
Can adopt the counterseal part of different shape, preferably do, can certainly use other material, as pottery and aluminum alloy making with steel.For maximum efficiency is provided, preferably 8.5 millimeters of the height of counterseal part, and be 1: 4 near the surface of suction tude with ratio away from the resistance coefficient on the surface of suction tude.As shown in Figure 4, the most effective profile of counterseal part is a mushroom, and is a snaphead 30 to the one side of suction tude, is connected on the conical apron shell 31.Many holes 32 are preferably arranged on conical apron shell, and they are around the spaced apart setting of apron shell, with improve around with the air-flow that passes apron shell, and reduce the accumulation and the inertia of air-flow.As previously mentioned, the resistance coefficient ratio that this counterseal part structure provides is 1: 4, and when the air inlet valve was in the close position, it guaranteed to have reliable counterseal function.
For cost or other reason, also can adopt the counterseal part of other shape.The approximate discoid counterseal part that is a kind of with three dome projectioies 35 shown in Figure 5.Three projectioies play directing effect and keep this dish to be in the center of valve tube, and have enough cracks, footpath, the counterseal part can axially be moved, to finish the function of switch valve in air-flow.Shown in Figure 6 is a kind of four jiaos of square plate-like counterseal parts for the circle shape.Though the counterseal part of these forms does not possess above-mentioned 1: 4 best resistance coefficient ratio, therefore, their aerodynamic shape is relatively poor, their advantage be can be more cheap a large amount of productions.Defective for the aerodynamic force aspect that remedies them can adjust above-mentioned scale removal blower, under the situation of the extra cost of not overspending, improves the air pressure of blower slightly.
Fig. 7 and Fig. 8 are the another kind of embodiments of air inlet valving, and wherein the whole identical air inlet valve of each cylinder all is contained in the removable assembly 40.This replaceable assembly has a tapered circumferential wall 45, connects bigger bottom surface 42 and less end face 43.Replaceable assembly has threaded pipe 27 and 28, respectively splendid attire spark plug or glowing plug and fuel nozzle.Stop the counterseal part to drop out downwards with cross-piece, the people that obviously know this technology also have other to guarantee the way that the counterseal part does not come off downwards.
Shown in Fig. 9 and Figure 10 is the counterseal part of other shape, and they can share with replaceable assembly.Three kinds of difform counterseal parts are shown just for for the purpose of illustrating, use a kind of shape but can only produce usually in any assembly.Figure 11 is according to a perspective view that the two-stroke-cycle engine of replaceable assembly is housed of the present invention.
Whole air inlet valve combination of a cylinder are had its superiority in single replaceable assembly, be the part that suffers loss of cylinder head because have only the air inlet valve.Air inlet valve collection is contained in the replaceable assembly and can changes whole valves of cylinder rapidly and easily,, change new getting final product as long as take off old replaceable assembly.
This replaceable assembly also has other advantages.The flat low shape of cylinder head and the level and smooth cylindrical shape of firing chamber help stratified mixture combustion aspect compression, when this is the precondition of hypotoxicity effluent, particularly motor with low mode of loading work.
In addition, replaceable assembly helps changing the compression ratio of motor, thereby makes the present invention can easily put into the two stroke engine of Otto or diesel type.Exhausting waste gas part of the present invention
Except above-mentioned the air inlet valve is contained in the cylinder head, exhaust outlet must be located at the bottom near cylinder, so that obtain the scaler system of direct current.As Fig. 1 roughly described, when bent axle 52 during around bottom dead center, exhaust vent 51 was positioned at the cylinder lower wall that passes near the extreme lower position of wheel rim on the piston.Exhaust vent is grooved radially preferably, and among Fig. 1 the end illustrates specially.
When these exhaust vents on the wheel rim removing down stroke on the piston, the pressure of cylinder will be reduced to the pressure that is lower than air inlet chamber, make the air inlet valve open, allow scavenging air enter cylinder.Scavenging air blows out cylinder to waste gas from exhaust vent.Because half of cylinder periphery can scale removal at least, even if it also is like this that a motor with upper cylinder is housed, therefore different with the two-stroke-cycle engine of routine, the height of exhaust vent can be very little, so just needs to sacrifice crankshaft angles hardly and satisfy scale removal.Thereby improved the performance of motor all sidedly.
Because the air inlet valve is by air stream drives, and air stream is to be controlled by the working condition of scale removal blower and distributing T-pipe valve, so do not need exhaust gas recirculation (egr) valve in the motor.
Another characteristics of the present invention are that the lubricated of motor can be finished with the same mode of foru cycle engine.So just, can not be subjected to the restriction of conventional two-stroke-cycle engine, can freely select the bearing of bent axle and the design of piston rod.
Though adopt the two-stroke of system disclosed herein follow motor can be as conventional four stroke engine lubricated and combustion oil not, still have little oil droplet and taken away by waste gas.When piston 53 is cleaning exhaust vent 51, and scale removal work is when beginning, and the thin oil film with on the piston ring on the cylinder wall may produce on the wheel rim that small oil droplet is deposited in exhaust vent.When these oil droplets increased to a certain size, the waste gas that their can got rid of was taken away and is entered catalyst.
Figure 12 shows that the segregating unit of a waste gas oil, it prevents that lubricant oil from remaining in the waste gas, avoids the work of the catalyst of automobile is brought adverse effect.This segregating unit has a volute, is available as the part of exhaust turbine 60, hereinafter will describe, and also can be used as independent parts, if when a segregating unit is housed.The part of the spiral outer wall of volute is cut off by many narrow radially cracks 66, these radially the crack from oil box 64 of volute outer wall guiding.
According to the present invention, any Residual oil in the exhaust flow is got rid of on the volute outer wall and is formed film, and film moves down up to reaching radially crack along spiral wall at leisure.Gas-static in the volute will drive and oilyly pass narrow radially crack and enter the oil box 64 that adjoins.A capillary tube 65 is got back to oil the oil groove (not shown) of motor from oil box recirculation.
If motor is equipped with the turbosupercharger of a routine, then turbine chamber will play waste gas-oil separator.If motor is not adorned turbosupercharger, then use an empty turbine cylinder that does not have turbine disc.
In order partly to reclaim the residual energy of waste gas, the most preferred embodiment that briefly shows among Fig. 1 is equipped with the expansion turbine 60 of a routine, joins with exhaust vent 51 flue gas leading on every side.But in most preferred embodiment, expansion turbine is unlike in the conventional turbosupercharger such, and it does not join with blower parts machinery.As mentioned above, the scale removal blower is driven by an electric servomotor, makes that these two parts are independent fully, and they can both be worked under any given working environment separately best.The scale removal blower ability of accelerator operating condition that makes an immediate response particularly importantly, it can be eliminated vehicle and improve the retardation phenomenon of quickening, so-called " turbo-lag ".In most preferred embodiment, expansion turbine links to each other with alternator, makes conventional storage battery (not shown) become the main energy sources device.
The high speed compression ratio, preferably 10: 1, being connected between turbine and the alternator 61 be with more than one-little toothed belt transmission (not shown), little many-notched belt wheel that is contained on the turbine shaft, and a big belt pulley (not shown) on the alternator is realized.Therefore, expansion turbine just links to each other by storage battery indirectly with the scale removal blower, and work in their each comfortable its optimum ranges.The ability of the operating conditions that their adapt to change than any routine directly link to each other by force.
Expansion turbine is not the unique power source of alternator, because at the underload duration of work, its impotentia provides enough energy to alternator.Therefore, alternator of the present invention, as the way in conventional engine, also use second group of belt pulley (not shown) and another drivign belt (also not shown) to be connected to by on the axle range of revolution fit of the diameter of belt pulley and alternator and bent axle.Be contained in two belt pulleys on the alternative electric generation arbor, the hub that freely rotates that each is equipped with an integral body makes the loading condition of alternator with engine operation, both can be driven by expansion turbine, also can be driven by bent axle.When motor with full power operation and need peak output when output alternator preferably to drive by exhaust gas turbine, and when the race of engine, alternator is preferably driven by bent axle.
In another embodiment, can replace with the remote control clutch of electromagnetism excitation and freely rotate hub.These clutches can make whole air and waste gas management system can finely tune control.
Whole exhaust emission device 63 also comprises the catalyst and the exhaust silencer of a routine, and the sensor that detects exhaust gas temperature and chemical composition.This electronic control feedback means is a pith of waste gas management system.
About only being for example above to the description of most preferred embodiment.Those skilled in the art that can make many remodeling according to the present invention, and these are significantly retrofited all in specification of the present invention and claim scope, no matter whether this paper explained.
Industrial applicability
The present invention reaches a two-stroke-cycle engine to be equivalent to four-stroke cycle and sends out The power of motivation, fuel-economizing and discharge quality, but but littler, than four-stroke Gently, simpler and more economical.
Claims (11)
1, a kind of two stroke IC engine has a cylinder (2) at least, in adorn a piston (53), to-and-fro motion between the top of cylinder and bottom,
It is characterized in that each cylinder has an one-way air air intake valve (1) at least, be arranged on the top of cylinder head, make air enter cylinder head, bottom at cylinder, promptly just piston base slightly on a bit, has an exhaust vent (51) at least, a blower (4) is arranged, when piston when bottom position is movable, blower makes air enter cylinder through each air intake valve, and when piston moved upward, blower was not supplied enough pressure and kept each air intake valve to open wide, therefore when piston moves upward, produce air compression in the cylinder, and when piston moved downward, blower forced air to enter cylinder through each air intake valve, thereby each exhaust vent is opened wide, waste gas is discharged cylinder from each relief opening.
2, two stroke IC engine according to claim 1,
It is characterized in that disposing a plurality of air inlet valves (1) dispersedly at the top of cylinder.
3, two stroke IC engine according to claim 2,
Be configured in unique replaceable assembly (40) with it is characterized in that described a plurality of air intake valve matrix types.
4, two stroke IC engine according to claim 1,
It is characterized in that described air intake valve controls with draught head fully.
5, two stroke IC engine according to claim 1,
It is characterized in that described blower is driven by an electric servomotor (9), this servomotor device that computerizeds control is controlled, and makes it can both reach best efficiency under the different operating state of motor.
6, two stroke IC engine according to claim 1,
Its feature also is to be equipped with a distributing T-pipe valve (8) between blower and cylinder, this flow divider links to each other with an accelerator (10), therefore when accelerator reduces pressure and needs full power, the distributing T-pipe valve just unrestrictedly allows air enter cylinder, and when the race of engine, it is sorrowful that air stream is just partly got back to the air inlet one of blower.
7, two stroke IC engine according to claim 6,
Its feature also is to be connected with an interstage cooler (5) between blower (4) and distributing T-pipe valve (8).
8, two stroke IC engine according to claim 6,
It is characterized in that the distributing T-pipe valve controlled by a servomotor, motor is accepted the feedback from an electronic state encoder measuring the accelerator state.
9, two stroke IC engine according to claim 1,
It is characterized in that each air intake valve all has a counterseal part (25), it is about 1: 4 near the surface of suction tude and resistance coefficient ratio away from the surface of suction tude.
10, two stroke IC engine according to claim 1,
Its feature is that also it is connected to an expansion turbine (60), by the waste gas of a passage reception from exhaust vent, this turbine does not link to each other with blower machinery, therefore blower and this turbine all work alone, and being operated in of they all may be best under any given operating conditions like this.
11, two stroke IC engine according to claim 1,
Its feature is that also it is equipped with an oil-waste gas segregating unit, the waste gas that this device has a volute to be used for receiving to come out from exhaust vent, many narrow translots (66) are arranged on the outer wall of volute, a box (64) is arranged, be used for receiving the oil that comes out from concentrated flow near these grooves.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US1548196P | 1996-04-12 | 1996-04-12 | |
US60/015,481 | 1996-04-12 | ||
US2198196P | 1996-07-18 | 1996-07-18 | |
US60/021,981 | 1996-07-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1216088A true CN1216088A (en) | 1999-05-05 |
CN1092756C CN1092756C (en) | 2002-10-16 |
Family
ID=26687428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97193753A Expired - Fee Related CN1092756C (en) | 1996-04-12 | 1997-04-11 | Air and exhaust gas management system for two-cycle IC engine |
Country Status (10)
Country | Link |
---|---|
US (1) | US6170444B1 (en) |
EP (1) | EP0891476B1 (en) |
JP (1) | JP2000508400A (en) |
KR (1) | KR20000005309A (en) |
CN (1) | CN1092756C (en) |
AU (1) | AU725312B2 (en) |
BR (1) | BR9708658A (en) |
DE (1) | DE69702707T2 (en) |
ES (1) | ES2150234T3 (en) |
WO (1) | WO1997039230A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103026034A (en) * | 2010-08-05 | 2013-04-03 | 株式会社Ihi | Two-cycle engine |
CN110234854A (en) * | 2016-10-04 | 2019-09-13 | 莫托丹有限公司 | Spark-ignited internal combustion engine |
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US6739292B1 (en) * | 2002-05-09 | 2004-05-25 | Leroy Neese | Two-stroke internal combustion engine with air injection system |
KR20080027926A (en) * | 2005-07-15 | 2008-03-28 | 한스-알민 올만 | Two-stroke internal combustion engine with enhanced scavenging |
US7475666B2 (en) * | 2006-09-07 | 2009-01-13 | Heimbecker John A | Stroke control assembly |
US20080060628A1 (en) * | 2006-09-07 | 2008-03-13 | Heimbecker John A | Self-lubricating piston |
NL2001869C2 (en) * | 2008-08-01 | 2010-02-02 | Stichting Materials Innovation | Cylinder head with valve seat and method for manufacturing them. |
FI125813B (en) * | 2009-08-28 | 2016-02-29 | Wã Rtsilã Finland Oy | COMBUSTION ENGINE DEVICE |
FR2972023A1 (en) * | 2011-02-28 | 2012-08-31 | Andre Chaneac | Dual supercharger for two-stroke engine, has low pressure pipe for removing waste gases while high pressure pipe supercharging engine, and independent circuits provided with air inlet valves that are electronically controlled |
CN102858079A (en) * | 2012-09-05 | 2013-01-02 | 南京大学 | Harmful gas absorbing device for linear accelerator |
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1997
- 1997-04-11 CN CN97193753A patent/CN1092756C/en not_active Expired - Fee Related
- 1997-04-11 BR BR9708658A patent/BR9708658A/en not_active IP Right Cessation
- 1997-04-11 KR KR1019980708021A patent/KR20000005309A/en not_active Application Discontinuation
- 1997-04-11 EP EP97915237A patent/EP0891476B1/en not_active Expired - Lifetime
- 1997-04-11 JP JP9536606A patent/JP2000508400A/en not_active Ceased
- 1997-04-11 DE DE69702707T patent/DE69702707T2/en not_active Expired - Fee Related
- 1997-04-11 AU AU22847/97A patent/AU725312B2/en not_active Ceased
- 1997-04-11 ES ES97915237T patent/ES2150234T3/en not_active Expired - Lifetime
- 1997-04-11 US US09/155,518 patent/US6170444B1/en not_active Expired - Fee Related
- 1997-04-11 WO PCT/CA1997/000246 patent/WO1997039230A2/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103026034A (en) * | 2010-08-05 | 2013-04-03 | 株式会社Ihi | Two-cycle engine |
CN103026034B (en) * | 2010-08-05 | 2015-08-05 | 株式会社Ihi | Two-cycle engine |
CN110234854A (en) * | 2016-10-04 | 2019-09-13 | 莫托丹有限公司 | Spark-ignited internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
ES2150234T3 (en) | 2000-11-16 |
AU2284797A (en) | 1997-11-07 |
EP0891476B1 (en) | 2000-08-02 |
US6170444B1 (en) | 2001-01-09 |
EP0891476A2 (en) | 1999-01-20 |
DE69702707D1 (en) | 2000-09-07 |
BR9708658A (en) | 1999-08-03 |
CN1092756C (en) | 2002-10-16 |
JP2000508400A (en) | 2000-07-04 |
WO1997039230A3 (en) | 1998-01-29 |
WO1997039230A2 (en) | 1997-10-23 |
DE69702707T2 (en) | 2001-03-15 |
AU725312B2 (en) | 2000-10-12 |
KR20000005309A (en) | 2000-01-25 |
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